From the announcement:
Below you can see some our Christmas Deals. PLUS! We've lowered the FREE shipping rates to £25/€35/$40 until January 5th, 2018! To qualify for free shipping you must live in the UK to take advantage of our UK Free Shipping Rate, Europe to use the Euro Free Shipping Rate and the US or the Rest of the World to use the Dollar Free Shipping Rate. See the Delivery section for more details.
Source